From: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
To: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: Stephen Warren <swarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [RFC 1/3] pinctrl: add a driver for NVIDIA Tegra
Date: Sun, 11 Dec 2011 11:36:25 -0800 [thread overview]
Message-ID: <20111211193625.GE31337@atomide.com> (raw)
In-Reply-To: <CACRpkdaco=967cKHUcj9VNKc_HyT7Mw30Z9HVdfgsUsHbps8bQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
* Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> [111209 15:17]:
> On Fri, Dec 9, 2011 at 6:07 PM, Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org> wrote:
>
> > - We currently have hard time supporting pin groups with pins
> > coming from multiple pinmux driver instances
>
> Pin groups are per definiton per-controller inctance. That is a
> given side effect of not having a global pin space.
>
> But you can create two groups of the same name on two
> pin controllers so that e.g. pinctrl.0 and pinctrl.1 have
> a group named "foo", then map both to a certain device
> in the board pinmux map.
>
> You will have to request them individually however, like
> with two hogs or two pinmux_get() calls specifying the
> name of each map, else you will just get the first one.
>
> Not that I've tried it, but that's how it's supposed to work...
Yes a little bit of trickery is needed there, I'll look into
it more as we already have two controller instances on omap4.
Regards,
Tony
WARNING: multiple messages have this Message-ID (diff)
From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC 1/3] pinctrl: add a driver for NVIDIA Tegra
Date: Sun, 11 Dec 2011 11:36:25 -0800 [thread overview]
Message-ID: <20111211193625.GE31337@atomide.com> (raw)
In-Reply-To: <CACRpkdaco=967cKHUcj9VNKc_HyT7Mw30Z9HVdfgsUsHbps8bQ@mail.gmail.com>
* Linus Walleij <linus.walleij@linaro.org> [111209 15:17]:
> On Fri, Dec 9, 2011 at 6:07 PM, Tony Lindgren <tony@atomide.com> wrote:
>
> > - We currently have hard time supporting pin groups with pins
> > ?coming from multiple pinmux driver instances
>
> Pin groups are per definiton per-controller inctance. That is a
> given side effect of not having a global pin space.
>
> But you can create two groups of the same name on two
> pin controllers so that e.g. pinctrl.0 and pinctrl.1 have
> a group named "foo", then map both to a certain device
> in the board pinmux map.
>
> You will have to request them individually however, like
> with two hogs or two pinmux_get() calls specifying the
> name of each map, else you will just get the first one.
>
> Not that I've tried it, but that's how it's supposed to work...
Yes a little bit of trickery is needed there, I'll look into
it more as we already have two controller instances on omap4.
Regards,
Tony
WARNING: multiple messages have this Message-ID (diff)
From: Tony Lindgren <tony@atomide.com>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: Stephen Warren <swarren@nvidia.com>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-tegra@vger.kernel.org
Subject: Re: [RFC 1/3] pinctrl: add a driver for NVIDIA Tegra
Date: Sun, 11 Dec 2011 11:36:25 -0800 [thread overview]
Message-ID: <20111211193625.GE31337@atomide.com> (raw)
In-Reply-To: <CACRpkdaco=967cKHUcj9VNKc_HyT7Mw30Z9HVdfgsUsHbps8bQ@mail.gmail.com>
* Linus Walleij <linus.walleij@linaro.org> [111209 15:17]:
> On Fri, Dec 9, 2011 at 6:07 PM, Tony Lindgren <tony@atomide.com> wrote:
>
> > - We currently have hard time supporting pin groups with pins
> > coming from multiple pinmux driver instances
>
> Pin groups are per definiton per-controller inctance. That is a
> given side effect of not having a global pin space.
>
> But you can create two groups of the same name on two
> pin controllers so that e.g. pinctrl.0 and pinctrl.1 have
> a group named "foo", then map both to a certain device
> in the board pinmux map.
>
> You will have to request them individually however, like
> with two hogs or two pinmux_get() calls specifying the
> name of each map, else you will just get the first one.
>
> Not that I've tried it, but that's how it's supposed to work...
Yes a little bit of trickery is needed there, I'll look into
it more as we already have two controller instances on omap4.
Regards,
Tony
next prev parent reply other threads:[~2011-12-11 19:36 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-08 22:13 [RFC 0/3] pinctrl: add a driver for NVIDIA Tegra Stephen Warren
2011-12-08 22:13 ` Stephen Warren
2011-12-08 22:13 ` Stephen Warren
2011-12-08 22:13 ` [RFC 1/3] " Stephen Warren
[not found] ` <1323382390-14892-2-git-send-email-swarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2011-12-09 14:01 ` Linus Walleij
2011-12-09 14:01 ` Linus Walleij
2011-12-09 14:01 ` Linus Walleij
[not found] ` <CACRpkdYDn0V7SeQuFiFDMxGkybvg6PGf7jxid8ECGB7Azkj3zw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-12-09 17:07 ` Tony Lindgren
2011-12-09 17:07 ` Tony Lindgren
2011-12-09 17:07 ` Tony Lindgren
2011-12-09 23:49 ` Linus Walleij
2011-12-09 23:49 ` Linus Walleij
[not found] ` <CACRpkdaco=967cKHUcj9VNKc_HyT7Mw30Z9HVdfgsUsHbps8bQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-12-11 19:36 ` Tony Lindgren [this message]
2011-12-11 19:36 ` Tony Lindgren
2011-12-11 19:36 ` Tony Lindgren
2011-12-09 17:28 ` Stephen Warren
2011-12-09 17:28 ` Stephen Warren
2011-12-09 17:28 ` Stephen Warren
[not found] ` <74CDBE0F657A3D45AFBB94109FB122FF17518604D7-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2011-12-09 18:00 ` Tony Lindgren
2011-12-09 18:00 ` Tony Lindgren
2011-12-09 18:00 ` Tony Lindgren
2011-12-09 23:55 ` Linus Walleij
2011-12-09 23:55 ` Linus Walleij
2011-12-09 23:55 ` Linus Walleij
[not found] ` <CACRpkdahqb0qMVcKF9NBT5pwRgK4FOob5ABtb7ids9Bhh5XbZg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-12-12 18:06 ` Stephen Warren
2011-12-12 18:06 ` Stephen Warren
2011-12-12 18:06 ` Stephen Warren
[not found] ` <74CDBE0F657A3D45AFBB94109FB122FF17518607C1-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2011-12-13 0:27 ` Linus Walleij
2011-12-13 0:27 ` Linus Walleij
2011-12-13 0:27 ` Linus Walleij
[not found] ` <1323382390-14892-1-git-send-email-swarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2011-12-08 22:13 ` [RFC 2/3] arm/tegra: Select PINMUX Kconfig variables Stephen Warren
2011-12-08 22:13 ` Stephen Warren
2011-12-08 22:13 ` [RFC 3/3] New pinmux testing hacks Stephen Warren
2011-12-08 22:13 ` Stephen Warren
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20111211193625.GE31337@atomide.com \
--to=tony-4v6ys6ai5vpbdgjk7y7tuq@public.gmane.org \
--cc=linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org \
--cc=linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org \
--cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=swarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.